Portable bluetooth speaker



Figure 2.1 is a front view of a portable bluetooth speaker showing the new design;

Figure 2.2 is a back view thereof;

Figure 2.3 is a left side view thereof;

Figure 2.4 is a right side view thereof;

Figure 2.5 is a top view thereof;

Figure 2.6 is a bottom view thereof. 

CLAIM The ornamental design for a portable bluetooth speaker, as shown and described. 